Cameron Crowe's Pearl Jam documentary: Watch the teaser here, and learn how they chose their name

Pearl Jam have been close with director Cameron Crowe for years (they even appeared in his 1992 movie Singles), and as part of their year-long 20th anniversary celebration—which also includes the release of deluxe reissues of Vs. and Vitalogy—Crowe is releasing a long-in-the-works documentary.

The short trailer for PJ20 (which you can watch after the jump) features vintage archival footage of the group discussing how they just changed their name to Pearl Jam. Originally, the group was called Mookie Blaylock, after a former NBA point guard (there’s even a shot of a marquee that touts Mookie Blaylock as the opening act for Alice In Chains).Legal issues forced them to change the name to Pearl Jam, and they’ve run with it ever since.

There’s a lot of terrible early ’90s fashion and plenty of goofing around in a van, which means that the film itself, scheduled to get released later this year, should reveal a lot about one of the most interesting and enduring bands in the world. Check out the brief teaser for yourself.